"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." YOU'VE PROBABLY HEARD big guys at the gym tossing around the word "hypertrophy" when they talk about ...

Teenagers' bodies change fast. Bones grow, muscles develop, and balance is altered. Adolescence can be a time of high energy, ...

MIT scientists find that motor neuron growth increased significantly over 5 days in response to biochemical (left) and mechanical (right) signals related to exercise. The green ball represents cluster ...

Achieving strong, defined arms or legs is about more than just lifting weights. A ton goes into growing your muscles—and that includes proper nutrition, recovery, and working out in a specific way.

More and more women are heading to the gym. Though not to lose weight, but to gain some serious muscle. Which is why having the best muscle-building tips is crucial. Unfortunately, there’s a lot of ...

Rest assured, the hype is real. Hypertrophy is, by definition, the enlargement of an organ or tissue from the increase in size of its cells. Not to be confused with hyperplasia, the process of ...

Building muscle seems to be on everyone’s mind lately, as it should be. Packing on lean mass has benefits for your metabolism, blood sugar, daily functioning, and longevity, just to name some of the ...

Jonathan Schoeff, MD, a board-certified surgeon and longevity expert, breaks down a fitness truth in a recent Instagram post: ...

Many dedicated gym-goers find themselves frustrated after months of consistent heavy lifting with minimal muscle growth to show for their efforts. The answer often lies beyond the weight room, in ...

A recent review by researchers from Ball State looked at how different muscles respond to training in adults over 60. What they found should change how we think about exercise programming, whether you ...

When you train your muscles (either by lifting weights, running, or doing resistance work), you create tiny microtears in your muscle fibers. While this might sound detrimental, it’s actually a good ...

We all want to know if and how we can come back to form after injury, illness, or a long hiatus. Muscles adapt in response to the environment: They grow when we put in the work and shrink when we stop ...